Furnace



Feb. 16, 1932. MASSIE 1,345fi15 FURNAC E Filed April 29, 1931 5 Sheets-Sheet l ATTORNEY Feb, 16, 1932. E. E. MASSIE 1,845,615

FURNACE Filed A ril 29. 1931 3 Sheets-Sheet 2 INVENTOR EL/HU E. MASS/E.

ATTORN EY E. E. MASSIE Feb. 16, 1932.

FURNACE v 3 Sheets-Sheet Filed April 23. 1951 INVENTOR ELIHU E. MASS/2 BY J\.,

ATTORNEY Patented Feb. 16, 1932 UNITED STA 'ELIHU E. MASSIE, on

ron'rsivronrn, OHIO.

FURNACE Application filed April 29;

My invention relates to furnaces.

It is the object of my invention to provide afurnace through which the flow of air to be heated for delivery to the rooms of a house may be regulated by adjusting the paths and proportion of air passing through each path through the furnace.

In particular, it is my object to prov de means of delivering air through the interior and exterior of a hollow wall fire box and means of using the air from one portion of the furnace through separate injector p1pes within the main pipes taking air from the other part of the furnace so as to secure the injector effect of air of a higher temperature by causing the flow of low temperature a1r through the pipes.

It is a further object to provide means of V regulating the proportions of high temperature air and low temperature air so as to control the injector effect in the hot air distribution pipes to the rooms.

It is a further object of the injector pipes carrying the higher temperature air within the main pipes carrying the lower temperature air in order to control the temperature in the rooms supplied by said pipes, as I have found that the longer the injector pipes the hotter will be the rooms to which the air is being delivered as I provide a longer heated surface of the injector pipe, and, therefore, increase the temperature and injector efiect by lengthening the pipe due to the raising of the temperature of the air in the outside pipes.

Referring to the drawings:

Figure 1 is a front elevation of the furnace;

Figure 2 is a side elevation thereof;

Figure 3 is a section on the line 33 of Figure 4;

Figure 4 is a sectionlon the line 4-4 of Figure 3; t

Figure 5 is a top plan view of the furnace;

Figure 6 is a section through the furnace taken longitudinally through the pipe system and the walls and rooms'of a typical house, which is diagrammatically illustrated.

Referring to the drawings in detail, 1 indi- 50 cates the grate bars, on which a fire is proto adjust the length 1931. Serial No. 533,590.

vided in the fire box 2 above the ash pit 3. Communication is had with the ash pit through the door 4. The fire box 2 is enclosed by an arch-shaped structure 5 preferably made in sections. This arch-shaped structure 5 carries within it on each section apai p of pipes 6 joined to a common outlet The bottoms of these pipes are open at 8 and communicate with the air inlet passageways 9 that discharge inlet air into the casing 10 that surrounds the sections 5 of the archshaped fire box enclosure.

The rear wall of the fire box enclosure is at 11. It carries the smoke pipe 12 that communicates with the interior of the fire box with the opening 13 and discharges to the opening 14 to the chimney or stack.

The front of the fire box is enclosed by the front wall 15 of the furnace, which has a fire door opening 16 closed by the fire door 17.

The casing 10 of the furnace is provided with a series of outlet openings 18 formed by the collars 19 on which are mounted themain supply pipes 20. Within these pipes mounted in spaced relationship and of smaller diameter are the injector pipes 21 which are mounted upon the outlet pipes 7.

The injector pipe 21 is varied in length as at 22, 23 and 24 in accordance with the temperature desired in the respective rooms 25, 26, 27 and 28.

For instance, if the room 25 is a living room that requires a seventy-degree temperature. the pipe 22 extends a relatively short distance within the pipe 20. The hot air so discharged rises to the ceiling and the return cold airvis withdrawn through the pipe 29 and discharged into the inlet duct 9 to the bottom of the furnace on either side thereof adjacent to the ash 'pit 3 and just below the inlet openings 8'of the pipes 6. a

If the room 26 is a dining room, for instance, where a temperature of sixty-eight degrees is desired, if the dining room is on the south side of the house, then the pipe 24 is only carried a short distance relatively to the entire length of the pipe 20.

On the other hand, in order to heat the bed room 27 and the bath room 28 to seventyinside of the passageways 6 and 7.

casin five degrees or eighty degrees, I arrange the pipe 23 so that it extends a relatively greater distance with respect to the pipe than in any of the other installations. By increasing the length of the pipe 23 with respect to the pipe 20 I get the benefit of the heat in the pipe 20 to a greater degree as the air passing through'the pipe 23 is of higher temperature than the air passing through the pipe 20. Therefore, I get an injector effect to induce the flow of the air in the pipe 20 which is increased by the increase of the heat of the air in the pipe 20.

It will be noted that Ihave provided within the casing 10 a pair of longitudinally disposed dampers which are hinged adjacent the side walls of theca-sing lO-of the furnace as at 31 and are operated by the levers 32 on the front of the furnace.

By adjusting these dampers I am enabled to determine the proportion of air that will flowover the outside of the sections 5 of the fire box and the proportion that will flow I thereby regulate the temperature by the adjustment of these dampers.

It will be understood that any number .of sections 5 and pipes 6 and 7 may be employed, it being preferred to have one pair of pipes 6, pipes 7 and sections 5 to each room and there will be an injector pipe 21 and a main supply pipe 20 to each room.

y furnace is distinguished by its simplicity, its easy control and the utilization of high temperature air to induce the fiow of lower temperature air and the complete extraction of the maximum amount of heat from a given amount of fuel.

My invention is adaptable to varying types of fuel.

It will be understood that I desire to comprehend within my invention such modifications as may be necessary to adapt it to varying conditions and uses.

IIaving thus fully described my invention, What I claim as new and desire to secure by Letters Patent, is

1. In a furnace, a fire box composed of a plurality of sections, a casing around the fire box and spaced from the sides thereof, an air inlet at each side of the casing for supplying air around the fire box, air outlets from the casing, a pair of air conducting pipes in each section having a common outlet, a pipe from the common outlet to an outlet from the and a damper between each side of the fire boxand a side of the casing.

2. In a furnace, a casing having a plurality ofair outlets and an air inlet on each side, a fire box in the casing spaced from the sides, said fire box consisting of a plurality of vertically disposed sections, a damper between each side of the'casing and the firebox, and

' means on the inside of each section to receive air from the inlets and conduct it to one of the outlets.

3. In a furnace, a casing having air inlets and air outlets, a fire box in the casing, said fire. box comprising a plurality of hollow arch-shaped sections having air connections with the interior of the casing, a pipe connection between each arch-shaped section and an outlet, and damper means between each side of the fire box and the casing.

1. In affurnace, a c'asing having an air inlet, a fire box, said fire box having a plurality of unitary separable sections, each comprising pipes joined together at the top to form a single outlet pipeand having inlet openings located below the point of juncture of said pipes, a plurality of conduits connected to said casing and extending to the separate spaces to be heated, said outlet pipes rha-ving portions extending into said conduitsand in spaced relation thereto to thereby inducean injector action upon the heated .air passing through said casing.

5. In a furnace, a casing having anair-inlet, a fire box, said fire box having a plurality of unitary separable sections, each comprising pipes joined together at the top to form -.a single outlet pipe and having inlet openings located below the point of juncture of said pipes, a plurality of conduits connected to said casing and extending to the separate spaces to be heated, said outlet pipes having portions extending into said conduits and in spaced relation thereto to thereby induce .an injector action upon the heated air passing through said casingp and damper means between each side of the firebox and the casing.

6. Inafurnace,a casing having an air inlet, a fire box, said fire box having aplurality of pairs of pipes joined together at the top to form a series-outlet pipes and having inlet openingslocated belowthe point of juncture of said pipes, a plurality of conduits connected to said casing and extending to the separate spaces-to be heated, said outlet pipes having portions extending into said conduits and in spaced relation thereto to thereby in duce an injector action upon the heated air passing through said casing, and damper means between each side ofthe fire boxland the casing.

7 In a furnace, a casing havinganair inlet, a fire box consisting of a grate and ash pit, said fire boxhaving a plurality ofunitary SBPZLIZLbIQ'SQCtlOIlS each consistingof gpipes joined together at the top to form a-single outlet pipe and having inlet openings at the bottom thereof adjacent to the air inlet of said casing, aplurality of conduitsconnected to said casingand extending to theseparata spaces to be heated, said outlet pipes having portions extending into said conduits and in spaced relationthereto to thereby inducean injector action upon the :heated .air passing through said casing.

8. In a furnace, a casing having an air inlet, a fire box consisting of a plurality of pipes joined together at the top to form a single outlet pipe and having inlet openings located below the point of juncture of said pipes, a plurality of conduits connected to said casing and extending to the separate spaces to be heated, each of said outlet pipes having portions extending into said conduits and in spaced relation thereto to thereby induce an injector action upon the heated air passing through said casing, and damper means between a side of the fire box and the casing.

9. In a furnace, a casing having an air inlet, a fire box consisting of a plurality of unitary separable sections each consisting of pipes joined together at the top, to form a single outlet pipe and having inlet openings located below the point of juncture of said pipes, a plurality of conduits connected to said casing and extending to the separate spaces to be heated, each of said outlet pipes having portions extending into said conduits and in spaced relation thereto to thereby induce an injector action upon the heated air passing through said casing, and damper means between a side of the fire box and the casing.

In testimony whereof, I affix my signature.

ELIHU E. MASSIE. 

